package ac.jejunu.photify.activity;

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.app.FragmentTransaction;
import android.support.v4.view.ViewPager;
import android.support.v7.app.ActionBar;
import android.support.v7.app.ActionBarActivity;
import android.view.Menu;
import android.view.MenuItem;
import android.view.Window;

import ac.jejunu.photify.R;
import ac.jejunu.photify.activity.fragment.TestFragment;

public class MainActivity extends ActionBarActivity implements ActionBar.TabListener {

	/**
	 * The {@link android.support.v4.view.PagerAdapter} that will provide
	 * fragments for each of the sections. We use a
	 * {@link FragmentPagerAdapter} derivative, which will keep every
	 * loaded fragment in memory. If this becomes too memory intensive, it
	 * may be best to switch to a
	 * {@link android.support.v4.app.FragmentStatePagerAdapter}.
	 */
	SectionsPagerAdapter mSectionsPagerAdapter;

	/**
	 * The {@link ViewPager} that will host the section contents.
	 */
	ViewPager mViewPager;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);

		// Set up the action bar.
		final ActionBar actionBar = getSupportActionBar();
		actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);


		// Create the adapter that will return a fragment for each of the three
		// primary sections of the activity.
		mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager());

		// Set up the ViewPager with the sections adapter.
		mViewPager = (ViewPager) findViewById(R.id.pager);
		mViewPager.setAdapter(mSectionsPagerAdapter);

		// When swiping between different sections, select the corresponding
		// tab. We can also use ActionBar.Tab#select() to do this if we have
		// a reference to the Tab.
		mViewPager.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
			@Override
			public void onPageSelected(int position) {
				actionBar.setSelectedNavigationItem(position);
			}
		});

		// For each of the sections in the app, add a tab to the action bar.
		for (int i = 0; i < mSectionsPagerAdapter.getCount(); i++) {
			// Create a tab with text corresponding to the page title defined by
			// the adapter. Also specify this Activity object, which implements
			// the TabListener interface, as the callback (listener) for when
			// this tab is selected.
			actionBar.addTab(
					actionBar.newTab()
							.setText(mSectionsPagerAdapter.getPageTitle(i))
							.setTabListener(this));
		}
	}


	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		// Inflate the menu; this adds items to the action bar if it is present.
		return true;
	}

	@Override
	public boolean onOptionsItemSelected(MenuItem item) {
		// Handle action bar item clicks here. The action bar will
		// automatically handle clicks on the Home/Up button, so long
		// as you specify a parent activity in AndroidManifest.xml.
		int id = item.getItemId();
		if (id == R.id.action_settings) {
			return true;
		}
		return super.onOptionsItemSelected(item);
	}

	@Override
	public void onTabSelected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) {
		// When the given tab is selected, switch to the corresponding page in
		// the ViewPager.
		mViewPager.setCurrentItem(tab.getPosition());
	}

	@Override
	public void onTabUnselected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) {
	}

	@Override
	public void onTabReselected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) {
	}

	/**
	 * A {@link FragmentPagerAdapter} that returns a fragment corresponding to
	 * one of the sections/tabs/pages.
	 */
	public class SectionsPagerAdapter extends FragmentPagerAdapter {
		private FragmentPlaceHolder holder;

		public SectionsPagerAdapter(FragmentManager fm) {
			super(fm);
			holder = new FragmentPlaceHolder();
		}

		@Override
		public Fragment getItem(int position) {
			return holder.getFragment(position);
		}

		@Override
		public int getCount() {
			return holder.getCount();
		}

		@Override
		public CharSequence getPageTitle(int position) {
			return holder.getTitle(position);
		}
	}

	public static class FragmentPlaceHolder {
		private Fragment[] fragments = new Fragment[]{
//				new PostFragment(),
				new ac.jejunu.photify.activity.fragment.MasonryGridFragment_(),
				new ac.jejunu.photify.activity.fragment.FacebookLoginFragment_(),
				new ac.jejunu.photify.activity.fragment.JsonTestFragment_(),
//				new TestFragment(),
		};
		private String[] titles = new String[]{
				"TEST1",
				"TEST2",
				"TEST3",
				"TEST4",
				"TEST5",
		};

		public Fragment getFragment(int index) {
			return fragments[index];
		}

		public String getTitle(int index) {
			return titles[index];
		}

		public int getCount() {
			return fragments.length;
		}
	}

}
